NATIONAL SENIOR CERTIFICATE GRADE 12

NATIONAL SENIOR CERTIFICATE

GRADE 12

GEOGRAPHY P1 NOVEMBER 2015

ANNEXURE

This annexure consists of 11 pages.

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Coastal plain Escarpment Escarpment

Coastal plain

Geography/P1

2 NSC (Annexure)

FIGURE 1.1: ANTICYCLONES OVER SOUTH AFRICA

West

South Atlantic high-pressure

system

Cold Atlantic Ocean

Kalahari high-pressure

system

Inland plateau

FIGURE 1.2: DRAINAGE BASIN AND ITS PROFILE

DBE/November 2015

East South Indian high-pressure

system

Warm Indian Ocean

[Adapted from ]

Alluvium

Sea

[Adapted from Ohio Stream Management Guide 3]

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Geography/P1

3 NSC (Annexure)

FIGURE 1.3: VALLEY CLIMATES

DBE/November 2015

[Adapted from ]

FIGURE 1.4: CROSS-SECTION OF A COLD FRONT

Cold air

Stratocumulus

Cumulonimbus

Warm air

Rain Direction of movement

Cool air

[Source: Examiner's own sketch]

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FIGURE 1.5: RIVER TYPES

4 NSC (Annexure)

DBE/November 2015

Dry river

N

Orange River

[Source: .za and photographs]

FIGURE 1.6: IMPACT OF HUMANS ON DRAINAGE BASINS

VAAL RIVER UNDER PRESSURE

Sipho Masondo | The Times Live

The Vaal River and its catchment system are becoming increasingly toxic/ poisoned ? posing a threat to health, the economy and food production in four provinces.

Water scientists and other experts describe the Vaal River ? which supplies water to Gauteng, the country's economic and industrial powerhouse, as well as to farmers in Gauteng, North West, the Free State and Northern Cape ? as 'in crisis' and 'under siege' by polluters. Since the 1990s, the Department of Water Affairs has pumped water from the Lesotho Highlands into the river to supplement the water supply. This water is increasingly needed to dilute the pollution.

Said Krige: 'We are using expensive drinking water to sort out the problem of pollution. Dilution is not a solution to pollution.'

The water in the Vaal River system will eventually cost far more to treat, leaving companies such as Sasol and Eskom to pay more for the chemicals needed to treat the water before they use it. This will increase their costs.

[Adapted from timeslive.co.za]

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Geography/P1

5 NSC (Annexure)

FIGURE 2.1: BERG WIND CONDITIONS

DBE/November 2015

[Adapted from millarslocal.co.za]

FIGURE 2.2: DRAINAGE DENSITY

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[Source: learnline.cdu.edu.eu] Please turn over

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